Reduce string copies in GURL creation

content/renderer/drop_data_builder.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/drop_data_builder.h"
 
 #include <stddef.h>
 
 #include "base/strings/string_util.h"
+#include "content/public/child/url_conversion.h"
 #include "content/public/common/drop_data.h"
 #include "third_party/WebKit/public/platform/WebDragData.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 #include "ui/base/clipboard/clipboard.h"
 
 using blink::WebDragData;
 using blink::WebVector;
 
 namespace content {
 
 // static
 DropData DropDataBuilder::Build(const WebDragData& drag_data) {
   DropData result;
   result.referrer_policy = blink::WebReferrerPolicyDefault;
 
   const WebVector<WebDragData::Item>& item_list = drag_data.items();
   for (size_t i = 0; i < item_list.size(); ++i) {
     const WebDragData::Item& item = item_list[i];
     switch (item.storageType) {
       case WebDragData::Item::StorageTypeString: {
         base::string16 str_type(item.stringType);
         if (base::EqualsASCII(str_type, ui::Clipboard::kMimeTypeText)) {
           result.text = base::NullableString16(item.stringData, false);
           break;
         }
         if (base::EqualsASCII(str_type, ui::Clipboard::kMimeTypeURIList)) {
-          result.url = GURL(item.stringData);
+          result.url = WebStringToGURL(item.stringData);
           result.url_title = item.title;
           break;
         }
         if (base::EqualsASCII(str_type, ui::Clipboard::kMimeTypeDownloadURL)) {
           result.download_metadata = item.stringData;
           break;
         }
         if (base::EqualsASCII(str_type, ui::Clipboard::kMimeTypeHTML)) {
           result.html = base::NullableString16(item.stringData, false);
           result.html_base_url = item.baseURL;
@@ skipping 21 matching lines @@
         result.file_system_files.push_back(info);
         break;
       }
     }
   }
 
   return result;
 }
 
 }  // namespace content